This project is planned to challenge the first inverse Nan of life for "girls who are not immunized with men" so-called girls (pure system lady) because they grew up girls' school and have boyfriends for several years. Pure lady can succeed the inverse Nan of the first life, can you get a man! What? And what is SEX of pure young lady! RESEARCH START ♪ This girl is Momoka who goes to a certain art college in Tokyo (20).